The IsoAcoustics ISO-200Sub Acoustic Isolation Stands are available for subwoofers used in professional studios project studios HiFi and home theater settings. The ISO Stands are an updated version of the popular ISO-L8R series and features a lower profile new frame design and a newer version of isolator for improved performance. The ISO-200Sub isolation stand is 7.8” (200mm) wide x 10” (255mm) depth x 3.5” (90mm) height and is rated for subwoofers weighing up to 60lbs. The ISO-200Sub does not include height or tilt adjustment.The ISO-L8R200Sub is designed to clean up acoustic issues common with subwoofers. The ISO-200Sub allows the subwoofer to float and controls the energy of the subwoofer to prevent the low frequencies from being driven into the supporting surface. As a result you will hear more punch and clarity from your subwoofer.The ISO-L8R200Sub – Drive your Sub HarderISO-200Sub is designed to accommodate most subwoofers and can be used as a single unit or combined with additional units for larger subwoofers.The ISO-L8R200Sub featured the same patented technology as the entire family of award-winning IsoAcoustics Acoustic Isolation Stands.Exciting the Supporting SurfaceThe isolators manage the energy of the speaker to reduce vibrations resonating through the supporting surface to eliminate dissonant sounds in the listening area or joining rooms.For down-firing subwoofers please compare dimensions carefully to ensure that the stand does not interfere with the down-firing driver. The ISO-200Sub is not compatible with all down-firing subwoofers.What's in the Box1 stand (Single)SpecificationsDimensions (W x D x H): 7.8" x 10" x 3.75"Weight Capacity: 75 lbsQuantity: 1 Stand (Single)